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jay1180 · 2022年10月13日

WL和WC代表relative shares of capital and labor in national income. 这句话咋理解啊~~

NO.PZ2016010802000115

问题如下:

An economic forecasting firm has estimated the following equation from historical data based on the neoclassical growth model:

Potential output growth = 1.5 + 0.72 × Growth of labor + 0.28 × Growth of capital

The coefficient on the growth rate of labor (0.72) in this equation is best interpreted as:

选项:

A.

the labor force participation rate.

B.

the marginal productivity of labor.

C.

the share of income earned by labor.

解释:

C is correct.

In the standard Solow growth accounting equation, the coefficient on each factors growth rate is its share of income.

考点:柯布道格拉斯函数的变形表达式

解析:本题直接考察1-α的定义,它代表劳动力对于总收入(总产出)的贡献占比。

谢谢老师,视频里一带而过。。原理不太懂

1 个答案

笛子_品职助教 · 2022年10月14日

嗨,努力学习的PZer你好:


WL和WC代表relative shares of capital and labor in national income. 这句话咋理解啊~~

Hello,亲爱的同学!这里没有太复杂呀,就是字面的含义:资本和劳动在国民收入中的相对份额

因为我们知道,

潜在GDP = 技术进步 + WL*劳动增长 + WC * 资本增长。


就如本题:

潜在GDP = 1.5 + 0.72 × Growth of labor + 0.28 × Growth of capital

劳动增长占比72%,资本增长占比28%,然后做回归,残差1.5就是技术进步。


我们就把这些数字带入就可以了。

本题直接考概念:就选C。the share of income earned by labor.

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虽然现在很辛苦,但努力过的感觉真的很好,加油!